References

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"Franklin, Benjamin (1706-1790)." World of Earth Science. Eds. K. Lee Lerner and Brenda Wilmoth Lerner. Vol. 1. Detroit: Gale, 2003. 233-234. 2 vols. Gale Virtual Reference Library. Gale. DISCUS. 3 Nov. 2010
[[http://find.galegroup.com/gvrl/infomark.do? &contentSet=EBKS &type=retrieve &tabID=T001 &prodId=GVRL &docId=CX3437800229 &source=gale &userGroupName=scschools &version=1.0]]

"Gerd." Compton's by Britannica. Encyclopædia Britannica Online School Edition. Encyclopædia Britannica, 2010. Web. 3 Nov. 2010 <http://school.eb.com/comptons/article-9310857>.

Aurora Borealis and Aurora Australis.(Astronomy)(Report)." World Almanac and Book of Facts. World Almanac Education Group, 2006. 333. General OneFile. Web. 3 Nov. 2010.

"Notorious U.S. storms, 1859-2005." World Almanac and Book of Facts. Facts on File, Inc., 2007. 302. General OneFile. Web. 3 Nov. 2010.